KiwiRail Coal Train Derails Near Ōtira Tunnel, Shutting Midland Line
The last wagon of a loaded train left the tracks Tuesday night, forcing the Transport Accident Investigation Commission to launch a formal inquiry.
By Sakura Novak ·
A loaded KiwiRail coal train derailed on Tuesday at 10 p.m. while approaching the Ōtira Tunnel, closing the Midland Line between Rolleston and Greymouth. The final wagon left the rails as the train headed toward Christchurch. The train came to a stop inside the tunnel, leaving the vehicle and surrounding rail infrastructure with extensive damage. No crew members reported injuries.
Lynne Morton, KiwiRail manager of engineering, said the company is currently assessing the scope of the damage and the repairs required. She stated the team is working to restore the line as quickly and safely as possible. Wednesday’s TranzAlpine service will operate only as far as Arthur's Pass. KiwiRail expects service disruptions to continue for several days.
Passengers affected by the closure will be contacted directly for rebooking or refund options. Replacement buses will be arranged where possible. KiwiRail is also coordinating with freight customers to manage the logistics of the disruption.
The Transport Accident Investigation Commission, or TAIC, has launched an inquiry into the incident. Chief investigator of accidents Louise Cook confirmed a team has been appointed to gather evidence. Investigators typically spend two to three days on site. Their first priority is collecting evidence before it disappears. This includes mapping the scene and speaking with witnesses and staff.
The team will examine the locomotive, rolling stock, and rail infrastructure. They will also secure data and maintenance records and interview the train crew and other operator staff. Cook explained that TAIC inquiries aim to improve transport safety by identifying lessons that can help prevent future accidents.
